Al-Ma'idah 5:48 وانزلنا اليك الكتاب بالحق مصدقا لما بين يديه من الكتاب ومهيمنا عليه فاحكم بينهم بما انزل الله ولا تتبع اهواءهم عما جاءك من الحق لكل جعلنا منكم شرعة ومنهاجا ولو شاء الله لجعلكم امة واحدة ولاكن ليبلوكم في ما اتاكم فاستبقوا الخيرات الى الله مرجعكم جميعا فينبيكم بما كنتم فيه تختلفون ٤٨

And We have sent down to you (O Muhammad صلى الله عليه وسلم) the Book (this Qur’ân) in truth, confirming the Scripture that came before it and Muhaymin (trustworthy in highness and a witness) over it (old Scriptures)¹. So judge among them by what Allâh has revealed, and follow not their vain desires, diverging away from the truth that has come to you. To each among you, We have prescribed a law and a clear way. If Allâh had willed, He would have made you one nation, but that (He) may test you in what He has given you; so compete in good deeds. The return of you (all) is to Allâh; then He will inform you about that in which you used to differ.